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path: root/drivers/net/wireless/ath/ath5k/ahb.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath5k/ahb.c')
-rw-r--r--drivers/net/wireless/ath/ath5k/ahb.c234
1 files changed, 0 insertions, 234 deletions
diff --git a/drivers/net/wireless/ath/ath5k/ahb.c b/drivers/net/wireless/ath/ath5k/ahb.c
deleted file mode 100644
index 79bffe165cab..000000000000
--- a/drivers/net/wireless/ath/ath5k/ahb.c
+++ /dev/null
@@ -1,234 +0,0 @@
-/*
- * Copyright (c) 2008-2009 Atheros Communications Inc.
- * Copyright (c) 2009 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (c) 2009 Imre Kaloz <kaloz@openwrt.org>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <linux/nl80211.h>
-#include <linux/platform_device.h>
-#include <linux/etherdevice.h>
-#include <linux/export.h>
-#include <ar231x_platform.h>
-#include "ath5k.h"
-#include "debug.h"
-#include "base.h"
-#include "reg.h"
-
-/* return bus cachesize in 4B word units */
-static void ath5k_ahb_read_cachesize(struct ath_common *common, int *csz)
-{
- *csz = L1_CACHE_BYTES >> 2;
-}
-
-static bool
-ath5k_ahb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
-{
- struct ath5k_hw *ah = common->priv;
- struct platform_device *pdev = to_platform_device(ah->dev);
- struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
- u16 *eeprom, *eeprom_end;
-
- eeprom = (u16 *) bcfg->radio;
- eeprom_end = ((void *) bcfg->config) + BOARD_CONFIG_BUFSZ;
-
- eeprom += off;
- if (eeprom > eeprom_end)
- return false;
-
- *data = *eeprom;
- return true;
-}
-
-int ath5k_hw_read_srev(struct ath5k_hw *ah)
-{
- struct platform_device *pdev = to_platform_device(ah->dev);
- struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
- ah->ah_mac_srev = bcfg->devid;
- return 0;
-}
-
-static int ath5k_ahb_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac)
-{
- struct platform_device *pdev = to_platform_device(ah->dev);
- struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
- u8 *cfg_mac;
-
- if (to_platform_device(ah->dev)->id == 0)
- cfg_mac = bcfg->config->wlan0_mac;
- else
- cfg_mac = bcfg->config->wlan1_mac;
-
- memcpy(mac, cfg_mac, ETH_ALEN);
- return 0;
-}
-
-static const struct ath_bus_ops ath_ahb_bus_ops = {
- .ath_bus_type = ATH_AHB,
- .read_cachesize = ath5k_ahb_read_cachesize,
- .eeprom_read = ath5k_ahb_eeprom_read,
- .eeprom_read_mac = ath5k_ahb_eeprom_read_mac,
-};
-
-/*Initialization*/
-static int ath_ahb_probe(struct platform_device *pdev)
-{
- struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
- struct ath5k_hw *ah;
- struct ieee80211_hw *hw;
- struct resource *res;
- void __iomem *mem;
- int irq;
- int ret = 0;
- u32 reg;
-
- if (!dev_get_platdata(&pdev->dev)) {
- dev_err(&pdev->dev, "no platform data specified\n");
- ret = -EINVAL;
- goto err_out;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res == NULL) {
- dev_err(&pdev->dev, "no memory resource found\n");
- ret = -ENXIO;
- goto err_out;
- }
-
- mem = ioremap_nocache(res->start, resource_size(res));
- if (mem == NULL) {
- dev_err(&pdev->dev, "ioremap failed\n");
- ret = -ENOMEM;
- goto err_out;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (res == NULL) {
- dev_err(&pdev->dev, "no IRQ resource found\n");
- ret = -ENXIO;
- goto err_iounmap;
- }
-
- irq = res->start;
-
- hw = ieee80211_alloc_hw(sizeof(struct ath5k_hw), &ath5k_hw_ops);
- if (hw == NULL) {
- dev_err(&pdev->dev, "no memory for ieee80211_hw\n");
- ret = -ENOMEM;
- goto err_iounmap;
- }
-
- ah = hw->priv;
- ah->hw = hw;
- ah->dev = &pdev->dev;
- ah->iobase = mem;
- ah->irq = irq;
- ah->devid = bcfg->devid;
-
- if (bcfg->devid >= AR5K_SREV_AR2315_R6) {
- /* Enable WMAC AHB arbitration */
- reg = ioread32((void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
- reg |= AR5K_AR2315_AHB_ARB_CTL_WLAN;
- iowrite32(reg, (void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
-
- /* Enable global WMAC swapping */
- reg = ioread32((void __iomem *) AR5K_AR2315_BYTESWAP);
- reg |= AR5K_AR2315_BYTESWAP_WMAC;
- iowrite32(reg, (void __iomem *) AR5K_AR2315_BYTESWAP);
- } else {
- /* Enable WMAC DMA access (assuming 5312 or 231x*/
- /* TODO: check other platforms */
- reg = ioread32((void __iomem *) AR5K_AR5312_ENABLE);
- if (to_platform_device(ah->dev)->id == 0)
- reg |= AR5K_AR5312_ENABLE_WLAN0;
- else
- reg |= AR5K_AR5312_ENABLE_WLAN1;
- iowrite32(reg, (void __iomem *) AR5K_AR5312_ENABLE);
-
- /*
- * On a dual-band AR5312, the multiband radio is only
- * used as pass-through. Disable 2 GHz support in the
- * driver for it
- */
- if (to_platform_device(ah->dev)->id == 0 &&
- (bcfg->config->flags & (BD_WLAN0 | BD_WLAN1)) ==
- (BD_WLAN1 | BD_WLAN0))
- ah->ah_capabilities.cap_needs_2GHz_ovr = true;
- else
- ah->ah_capabilities.cap_needs_2GHz_ovr = false;
- }
-
- ret = ath5k_init_ah(ah, &ath_ahb_bus_ops);
- if (ret != 0) {
- dev_err(&pdev->dev, "failed to attach device, err=%d\n", ret);
- ret = -ENODEV;
- goto err_free_hw;
- }
-
- platform_set_drvdata(pdev, hw);
-
- return 0;
-
- err_free_hw:
- ieee80211_free_hw(hw);
- err_iounmap:
- iounmap(mem);
- err_out:
- return ret;
-}
-
-static int ath_ahb_remove(struct platform_device *pdev)
-{
- struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
- struct ieee80211_hw *hw = platform_get_drvdata(pdev);
- struct ath5k_hw *ah;
- u32 reg;
-
- if (!hw)
- return 0;
-
- ah = hw->priv;
-
- if (bcfg->devid >= AR5K_SREV_AR2315_R6) {
- /* Disable WMAC AHB arbitration */
- reg = ioread32((void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
- reg &= ~AR5K_AR2315_AHB_ARB_CTL_WLAN;
- iowrite32(reg, (void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
- } else {
- /*Stop DMA access */
- reg = ioread32((void __iomem *) AR5K_AR5312_ENABLE);
- if (to_platform_device(ah->dev)->id == 0)
- reg &= ~AR5K_AR5312_ENABLE_WLAN0;
- else
- reg &= ~AR5K_AR5312_ENABLE_WLAN1;
- iowrite32(reg, (void __iomem *) AR5K_AR5312_ENABLE);
- }
-
- ath5k_deinit_ah(ah);
- iounmap(ah->iobase);
- ieee80211_free_hw(hw);
-
- return 0;
-}
-
-static struct platform_driver ath_ahb_driver = {
- .probe = ath_ahb_probe,
- .remove = ath_ahb_remove,
- .driver = {
- .name = "ar231x-wmac",
- .owner = THIS_MODULE,
- },
-};
-
-module_platform_driver(ath_ahb_driver);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-20 09:20:04 +0000